Use pytest-xdist to improve test execution

[edenhaus]

No description provided.

[Copilot]

Pull Request Overview

This PR introduces pytest-xdist to improve test execution performance through parallel test running. The main purpose is to enable concurrent test execution using the -n auto flag, which automatically detects the optimal number of worker processes.

• Added pytest-xdist dependency to enable parallel test execution
• Modified test commands across CI workflows to use -n auto flag for automatic worker count detection
• Sorted parametrized test sets to ensure deterministic test execution order in parallel environments

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pyproject.toml	Adds pytest-xdist==3.8.0 dependency for parallel test execution
ci/entrypoint.sh	Updates pytest command to use -n auto for parallel execution
.github/workflows/ci.yml	Modifies CI workflows to run tests in parallel using -n auto
tests/messages/xml/test_pos.py	Wraps parametrized test sets in sorted() for deterministic order
tests/messages/xml/test_map.py	Wraps parametrized test sets in sorted() for deterministic order
tests/messages/xml/test_clean.py	Wraps parametrized test sets in sorted() for deterministic order

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.86%. Comparing base (9171330) to head (78e0128).
⚠️ Report is 3 commits behind head on dev.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #1171   +/-   ##
=======================================
  Coverage   93.86%   93.86%           
=======================================
  Files         135      135           
  Lines        5149     5149           
  Branches      336      336           
=======================================
  Hits         4833     4833           
  Misses        252      252           
  Partials       64       64           

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[codspeed-hq]

CodSpeed Performance Report

Merging #1171 will not alter performance

_{Comparing pytest-xdist (78e0128) with dev (685a7ef)}

Summary

✅ 6 untouched